ABSTRACT
[ABSTRACT]AIM:Toobservethelong-termeffectsoftaurine,Danxuetong(Salviamiltiorrhizacombinedwith Xueshuantong ) and breviscapine on contralateral testis with unilateral testicular torsion in prepubertal rats , and to compare their protective effect on testis with ischemia reperfusion injury .METHODS: Four-week-old healthy male SD rats ( n=64) were randomly divided into 8 groups:sham operation group, saline group, single-dose and successive taurine groups, single-dose and successive Danxuetong groups , and single-dose and successive breviscapine groups .The animal model of left testicular torsion reduction (720°for 2 h) was established.After 6 weeks of surgery, the right testes and epididymides from the rats were collected immediately to detect the total antioxidant capacity (T-AOC), the activity of superoxide dis-mutase (SOD), the activity of nitric oxide synthase (NOS) and the content of malondialdehyde (MDA).The sperm de-formity, sperm viability and sperm concentration were measured , and the pathological examination of the testicular tissues was performed.RESULTS:Compared with saline group, the activity of SOD, T-AOC, sperm viability and sperm concen-tration were increased , while MDA content and sperm deformity were decreased in 3 successive groups .SOD activity and sperm viability ( except single-dose breviscapine group ) were increased , but MDA content and sperm deformity were de-creased in 3 single-dose groups .T-AOC activity and sperm concentration were increased in single-dose taurine group .The saline group showed interstitial edema and degeneration of seminiferous tubules , and the rest groups showed a significant improvement in histological morphology .CONCLUSION:The contralateral testis in prepubertal rats was damaged after u-nilateral testicular torsion , and taurine , Danxuetong and breviscapine have long-term protective effect on the tissues under ischemia-reperfusion injury .The protective effect of Danxuetong is better than breviscapine , and taurine is the best of them.The effect of single-dose group is better than the successive application .
ABSTRACT
Gynecomastia is defined as the excessive development of breast tissue in males, which can occur as unilateral or bilateral. Although the overall prevalence of gynecomastia is 40%-65%, the prepubertal unilateral gynecomastia in the absence of endocrine abnormalities is unusual, with only a few case reports in literature. Idiopathic gynecomastia in prepuberty is benign but a diagnosis of exclusion. We here report two cases of healthy prepubertal boys aged 8.8 and 9.6 years old, respectively, presented with painful palpable mass in their unilateral breast. Breast tissue with glandular proliferation was confirmed on ultrasonography. Serum levels of estradiol, testosterone, and other laboratory findings were within normal range. They seem to have the prepubertal idiopathic gynecomastia but further follow-up to see their progression is needed.
Subject(s)
Child , Humans , Male , Breast , Diagnosis , Estradiol , Gynecomastia , Prevalence , Reference Values , Testosterone , UltrasonographyABSTRACT
Non-extraction treatment for a case with dental crowding and protrusion in prepuberty is reported.After the slow palatal expan-sion for the treatment of dental crowding of maxilla,the patient underwent orthodontic treatment.The mandibular growth led to the correction of dental crowding and the improvement of jaw profile.
ABSTRACT
La Periodontitis prepuberal es una forma rara de periodontitis, que afecta la dentición primaria, y es muchas veces la causa de la pérdida prematura de estos dientes. Se describen dos formas; la forma localizada es la menos severa. Presentamos un caso de un niño de 4 años de edad y diagnóstico de neutropenia crónica benigna e inmunodeficiencia celular, con antecedente de pérdida de los incisivos superiores por movilidad dental y que al examen bucal presentaba movilidad dental grado IV, inflamación gingival moderada y sangramiento al mínimo estímulo. A los Rx se detectó pérdida ósea avanzada en incisivos inferiores y molares temporales. Se llegó al diagnóstico de Periodontitis Prepuberal Localizada.
Prepuberty periodontitis is a rare presentation way of this disease, affecting primary dentition and it is the cause of premature loss of these type of teeth.Two types of the disease are described, being the localized one the less severe. Here we present a case of a 4 years old boy with diagnose of chronic benign neutropenia and cell immunodefficiency and records of loss of upper incisors due to dental mobility. To oral examination, he presents grade IV dental mobility, moderate gingival inflammation and bleeding after minimal stimulation. Rx exploration showed advanced bone loss of lower incisors and of temporal molars. It is concluded as Localized Prepuberty Periodontitis.