鄉下的妹子太便宜，一次四個都要了[12P]

stcar

good good support

dadiaoguang

谢谢

wyp5888

好图，谢谢分享。

wudaode

11

xxp13136

大家好心情

weihai

果您要查看本帖隱藏內容請

q2367975099

看看再说

金正恩

将计就计

zidantiao

真的很不错

kaifka

RESPONSE OF MICROPENIS TO TOPICAL TESTOSTERONE AND
GONADOTROPIN
$ V& v' S# F# YRICHARD C. KLUGO* AND JOSEPH C. CERNY
From the Division of Urology, Henry Ford Hospital, Detroit, Michigan
ABSTRACT
: y0 U- a; R: l: IFive patients were treated with gonadotropin and topical testosterone for micropenis associated
with hypothalamic hypogonadotropic hypogonadism. All patients received 1,000 units of gonado-
" |' Z& ^# r! J% B+ `7 ^' |tropin weekly for 3 weeks, with a 6-week interval followed by 10 per cent topical testosterone
9 X0 c6 |$ |0 C8 ^8 V' xcream twice daily for 3 weeks. Serum testosterone levels were measured and remained equivalent
for both modes of therapy. Average penile growth response with gonadotropin was 14.3 per cent
) ?' V" Z! X& H) B: v$ v- p+ Uincrease in length and 5.0 per cent increase of girth. Topical testosterone produced an average
increase of 60 per cent in penile length and 52. 9 per cent in girth. The greatest growth response
, z. q2 u  Z* x/ k$ X0 H! H8 poccurred in prepuberal male subjects with a minimal response in postpuberal male subjects. This
2 U4 R* D, O3 u: ^study suggests that 10 per cent topical testosterone cream twice daily will produce effective penile
- L  |. S( Z7 t) z( _growth. The response appears to be greater in younger children, which is consistent with previ-
- n# B& F2 P: d+ H( Tously published studies of age-related 5 reductase activity.
Children with microphallus regardless of its etiology will
require augmentation or consideration for alteration of exter-
$ p* Z! v" H: V# j- \7 M! gnal genitalia. In many instances urethroplasty for hypo-
& P! Q6 ~1 G0 n6 g( Ispadias is easier with previous stimulation of phallic growth.
; q; T4 k/ p* @" V6 N7 e( {) T% VThe use of testosterone administered parenterally or topically
has produced effective phallic growth. 1- 3 The mechanism of
8 n; g! E0 ]# C! gresponse has been considered as local or systemic. With this
in mind we studied 5 children with microphallus for response
to gonadotropin and to topical testosterone independently.
MATERIALS AND METHODS
Five 46 XY male subjects between 3 and 17 years old were
, F& A" L2 h6 X$ \( tevaluated for serum testosterone levels and hypothalamic
function. Of these 5 boys 2 were considered to have Kallmann's
syndrome, 1 Prader-Willi syndrome and 2 idiopathic hypotha-
lamic deficiency. After evaluation of response to luteinizing
3 R8 g. X& g9 C0 J% qhormone-releasing hormone these patients were treated with
1,000 units of gonadotropin weekly for 3 weeks. Six weeks
after completion of gonadotropin therapy 10 per cent topical
6 l; `, Q. _' E6 O# Jtestosterone was applied to the phallus twice daily for 3 weeks.
Serum testosterone, luteinizing hormone and follicle-stimulat-
ing hormone were monitored before, during and after comple-
tion of each phase of therapy. Penile stretch length was
obtained by measuring from the symphysis pubis to the tip of
the glans. Penile circumferential (girth) measurements were
  O: |! u; w1 Q- X' k0 Z0 v. `obtained using an orthopedic digital measuring device (see
figure).
RESULTS
* {4 E* e/ J" R  d3 Z0 x5 TSerum testosterone increased moderately to levels between
4 F- J% U* z6 y; w6 b: ]) K: W50 and 86 ng./dl. with gonadotropin stimulation. Serum testos-
& N4 o5 A4 `0 ?. G0 s# H8 G7 rterone levels with topical testosterone remained near pre-
treatment levels (35 ng./dl.) or were elevated to similar levels
developed after gonadotropin therapy (96 ng./dl.). Higher
serum levels were noted in older patients (12 and 17 years old),
, O0 W- z4 F# Hwhile lower levels persisted in younger patients (4, 8, and 10
7 z7 t/ b2 V3 x" Z# ]9 `8 x; [years old) (see table). Despite absence of profound alterations
of serum testosterone the topical therapy provided a greater
! z2 J$ i( V0 ^0 `Accepted for publication July 1, 1977. ·
' [- K1 s" |% G8 f6 _* V0 h3 MRead at annual meeting of American Urological Association,
Chicago, Illinois, April 24-28, 1977.
, c7 v: o2 i- |- p' R. I9 x* Requests for reprints: Division of Urology, Henry Ford Hospital,
2799 W. Grand Blvd., Detroit, Michigan 48202.
& ^) m+ B+ I% k4 b+ Gimprovement in phallic growth compared to gonadotropin.
: c/ D8 K" ]0 K% z" l  FAverage phallic growth with gonadotropin was 14.3 per cent
- m+ w+ i) z& D  ]0 hincrease in length and 5.0 per cent increase of girth. Topical
8 G! B9 d# E8 C& d6 n/ rtestosterone produced a 60.0 per cent increase of phallic length
and 52.9 per cent increase of girth (circumference). The
response to topical testosterone was greatest in children be-
tween 4 and 8 years old, with a gradual decrease to age 17
years (see table).
DISCUSSION
. s; j  u3 ]9 z4 ETopical testosterone has been used effectively by other
clinicians but its mode of action remains controversial. Im-
! ?; V( H) i" X8 P- Jmergut and associates reported an excellent growth response
% a* V; I# g+ Q2 hto topical testosterone with low levels of serum testosterone,
suggesting a local effect.1 Others have obtained growth re-
sponse with high. levels of serum testosterone after topical
, P( U# v# M3 cadministration, suggesting a systemic response. 3 The use of
. a8 R7 N$ p7 q2 c. V1 e0 `gonadotropin to obtain levels of serum testosterone compara-
ble to levels obtained with topical testosterone would seem to
/ {' U. u8 ~( v% H6 q+ y, Tprovide a means to compare the relative effectiveness of
: @" S& B% q& x9 d" I+ atopical testosterone to systemic testosterone effect. It cer-
tainly has been established that gonadotropin as well as par-
enteral testosterone administration will produce genital
1 `2 g0 q( J4 y7 G) ^0 wgrowth. Our report shows that the growth of the phallus was
% Q  C% G, o  M& D  m7 Z& g) ^. i" {significantly greater with topical applications than with go-
nadotropin, particularly in children less than 10 years old.
: Y- x9 G* K  Q# ^- K) R4 T8 R5 yThe levels of serum testosterone remained similar or lower
  C4 }2 X8 ?. E$ B& ^than with gonadotropin during therapy, suggesting that topi-
( h; K0 n7 M% |6 Q/ R  ^9 Xcal application produces genital growth by its local effect as
well as its systemic effect.
Review of our patients and their growth response related to
age shows a greater growth response at an earlier age. This is
! B+ l7 R3 G# s2 k0 c2 t; X0 [/ S& `consistent with the findings of Wilson and Walker, who
reported an increased conversion of testosterone to dihydrotes-
tosterone in the foreskin of neonates and infants.4 This activ-
ity gradually decreases with age until puberty when it ap-
proaches the same level of activity as peripheral skin. It may
well be that absorption of testosterone is less when applied at
1 V% o* Z, R$ W( ~an earlier age as suggested by lower serum levels in children
% [" p$ o) r9 e: Zless than 10 years old. This fact may be explained by the
greater ability of phallic skin to convert testosterone to dihy-
, a2 ?) u4 L; g' m5 }drotestosterone at this age. Conversely, serum levels in older
patients were higher, possibly because of decreased local
667
3 |% K: ^( p! }668 KLUGO AND CERNY
: W1 J* s% Q# \6 kPt. Age
+ x( E6 o& v$ F% l(yrs.)
: x) |+ O/ F1 X+ b# }Serum Testosterone Phallus (cm.) Change Length
(ng./dl.) Girth x Length (%)
4
8
( Y; _# p. W/ e; Z. [10
12
17
Gonadotropin
71.6 2.0 X 3 16.6
9 d9 z& U1 p7 P) ^. F" u50.4 4.0 X 5.0 20.0
22.0 4.5 X 4.0 25.0
. ]. U+ F( G: J* h, k( T+ [" I84.6 4.0 X 4.5 11.1
0 Z( [! p0 P& a. `) K+ i85.9 4.5 X 5.5 9.0
Av. 14.3
4
8
10
12
17
Topical testosterone
1 W8 l0 ^* U2 }! H5 u* n4 f34.6 4.5 X 6.5 85
38.8 6.0 X 8.5 70
7 J; L3 E2 J+ @+ a1 }9 f3 ]40.0 6.0 X 6.5 62.5
93.6 6.0 X 7.0 55.5
: P" M7 \6 ]& k3 X- G; Q) u( r95.0 6.5 X 7.0 27.2
9 D' d$ f; w( [7 ]& a" S8 jAv. 60.0
available testosterone. Again, emphasis should be placed on
- X2 X1 f7 k8 }+ S3 ~  J) m* Rearly therapy when lower levels of testosterone appear to
provide the best responses. The earlier therapy is instituted
the more likely there will be an excellent response with low
serum levels. Response occurs throughout adolescence as
" Z" \# H2 S8 Unoted in nomograms of phallic growth. 7 The actual response
to a given serum level of testosterone is much greater at birth
* u* |" k& T# _. hand gradually decreases as boys reach puberty. This is most
5 H% ^& J4 q: T& |! Z2 Qlikely related to the conversion of testosterone to dihydrotes-
, ^2 h# W  G5 ^3 @1 H8 jtosterone and correlates well with the studies of testosterone
5 N9 o- u! K- V' V' E( Zconversion in foreskin at various ages.
The question arises regarding early treatment as to whether
one might sacrifice ultimate potential growth as with acceler-
ated bone growth. The situation appears quite the reverse
! Q9 W0 E: p$ Kwith phallic response. If the early growth period is not used
4 V/ I: \4 U% A) y6 P% Wwhen 5a reductase activity is greatest then potential growth
may be lost. We have not observed any regression of growth
# R8 o1 _" D4 M6 Qattained with topical or gonadotropin therapy. It may well
be that some patients will show little or no response to any
form of therapy. This would suggest a defect in the ability to
' D: r; n0 z! C% ]8 N  cconvert testosterone to dihydrotestosterone and indicate that
/ d' t% u7 w2 p( r2 }phallic and peripheral skin, and subcutaneous tissue should
3 N5 |+ n: C3 Z% W* U& Xbe compared for 5a reductase activity.
A, loop enlarges to measure penile girth in millimeters. B,
example of penile girth computed easily and accurately.
conversion of testosterone to dihydrotestosterone. It is in this
older group that others have noted high levels of serum
testosterone with topical application. It would also appear
$ x% c+ T0 A9 w' V- U0 hthat phallic response during puberty is related directly to the
) o6 E& b8 L! `- ^7 {serum testosterone level. There also is other evidence of local
. q. ]( F1 ^- Jresponse to testosterone with hair growth and with spermato-
genesis. 5• 6
Administration of larger doses of gonadotropin or systemic
) }, N$ P# E- a, g. `$ \testosterone, as well as topical applications that produce
" ~% W) s" ]- {; U6 K5 X8 Jhigher levels of serum testosterone (150 to 900 ng./dl.), will
; i1 d/ J) O8 F; d; Yalso produce phallic growth but risks accelerated skeletal
6 D; E6 _+ J, q- d0 Jmaturation even after stopping treatment. It would appear
that this may be avoided by topical applications of testosterone
and monitoring of serum testosterone. Even with this control
the duration of our therapy did not exceed 3 weeks at any
- F7 y/ D2 _# |6 ?  \3 r% d9 gtime. It is apparent that the prepuberal male subject may
0 ~- @0 r; s/ T* X% ~/ V- D$ Ksuffer accelerated bone growth with testosterone levels near
200 ng./dl. When skeletal maturation is complete the level of
serum testosterone can be maintained in the 700 to 1,300 ng./
dl. range to stimulate phallic growth and secondary sexual
changes. Therefore, after skeletal maturation parenteral tes-
3 O' A" ?9 o! T7 wtosterone may be used to advantage. Before skeletal matura-
1 R/ W/ e/ h& N$ W  M* Y( @4 ktion care must be taken to avoid maintaining levels of serum
, N6 f; l- N& otestosterone more than 100 ng./dl. Low-dose gonadotropin
depends upon intrinsic testicular activity and may require
8 F2 W. ]" ?) bprolonged administration for any response.
Alternately, topical testosterone does not depend upon tes-
ticular function and may provide a more constant level of
REFERENCES
1. Immergut, M., Boldus, R., Yannone, E., Bunge, R. and Flocks,
R.: The local application of testosterone cream to the prepub-
1 ~- A: }# |+ }ertal phallus. J. Urol., 105: 905, 1971.
) l1 {: i) E6 O1 H9 }2. Guthrie, R. D., Smith, D. W. and Graham, C. B.: Testosterone
treatment for micropenis during early childhood. J. Pediat.,
0 j2 i6 b' A4 e3 X1 C83: 247, 1973.
3. Jacobs, S. C., Kaplan, G. W. and Gittes, R. F.: Topical testoster-
one therapy for penile growth. Urology, 6: 708, 1975.
4 C5 i. x2 `0 H% A1 W4. Wilson, J. D. and Walker, J. D.: The conversion of testosterone
: Z" S. _3 l8 s; R1 y; O, h, ~8 zto 5 alpha-androstan-17 beta-01-3-one (dihydrotestosterone) by
skin slices of man. J. Clin. Invest., 48: 371, 1969.
5. Papa, C. M. and Klingman, A. M.: Stimulation of hair growth
' x; b1 j( F$ }" Q( @  }by topical application of androgens. J.A.M.A., 191: 521, 1965.
, E6 z' @9 P5 G6. Gittes, R. F., Smith, G., Conn, C. A. and Smith, F.: Local
# T. Y! `. q: D4 Wandrogenic effect of interstitial cell tumor of the testis. J.
Urol., 104: 774, 1970.
7. Schonfeld, W. A. and Beebe, G. W.: Normal growth and varia-
tion in the male genitalia from birth to maturity. J. Urol., 48: