Quality by Design approach for the investigation of critical characteristics of Phyllanthus emblica from different vicinities / 数字中医药（英文）

@#[Objective] To explore the application of Quality by Design (QbD) tools in assessing geographical variations of Phyllanthus emblica (P. emblica) from five distinct Indian states. [Methods] In the current experiment, the Box-Behnken design with a reduced quartic model and 105 runs was employed with the use of the Design Expert software for randomized response surface mapping. Three different extraction methods (Soxhlet, maceration, and sonication) along with three solventst [distilled water, methanol, and water-methanol mixture (50 : 50 v/v)] were considered in the present study. The anti-oxidant activities, total flavonoid content (TFC), and total phenolic content (TPC) in the P. emblica were determined and analysed by gas chromatography-mass spectrometry (GC-MS) to identify the major components. [Results] The QbD overlay plot showed that the extractive value of the P. emblica was no less than 30% w/w, 2,2-diphenyl-1-picrylhydrazyl (DPPH) no less than 60% mcg/mL (micrograms per millilitre), TFC no less than 75 mg QE/g (milligrams of quercetin equivalents per gram), and TPC no less than 80 mg GAE/g (milligrams of gallic acid equivalents per gram). Moreover, the GC-MS data confirmed the presence of variation in the bioactives of P. emblica extracts. [Conclusion] The model was significant in describing the variation in extractive value, DPPH, TFC, and TPC. The QbD approach may tend to prioritize thoroughness in the extraction process, ultimately resulting in improved quality in the extracted products.

Cocaine dependence: A case series from India.

Background. Cocaine use and dependence is a wellknown phenomenon in the West but has not been reported in the medical literature from India, despite recent media reports of its use by drug abusers and seizure by authorities. Methods. We report 5 patients with cocaine dependence who came for treatment to the Department of Psychiatry, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh. Results. All the patients were young adult men (age range 20–27 years). They were either unemployed or in mediumlevel occupation. All used cocaine by ‘snorting’ (inhaling cocaine hydrochloride salt in a powder form through the nose so that cocaine gets rapidly absorbed into the bloodstream through the nasal mucosal epithelial capillary vasculature). None reported smoking or inhaling the vapour of heated freebase cocaine (‘crack’). All reported intense and specific craving for cocaine (and met criteria for dependence syndrome as per ICD-10), though 3 patients were also dependent on opioid preparations (heroin, dextropropoxyphene or codeinecontaining cough syrups). We started them on clonidine for opioid detoxification followed by naltrexone. Since there is no approved medication for cocaine withdrawal or relapse prevention, our focus was on relapse prevention counselling using cognitive behavioural principles. The outcome was variable. Conclusion. Cocaine dependence is present among the population in India. Patients are not necessarily from the affluent class. This case series of cocaine dependence, the first from India, intends to be both a curtain raiser and an eyeopener.

Multiple bilateral lower limb fractures in a 2-year-old child: previously unreported injury with a unique mechanism / 中华创伤杂志(英文版)

Fall from height is a common cause of unintentional injuries in children and accounts for 6% of all trauma-related childhood deaths, usually from head injury. We report a case of a 2-year-old child with multiple fractures of the bilateral lower limbs due to this reason. A child fell from a height of around 15 feet after toppling from a balcony. He developed multiple fractures involving the right femoral shaft, right distal femoral epiphysis (Salter Harris type 2), right distal metaphysis of the tibia and fibula, and undisplaced Salter Harris type 2 epiphyseal injury of the left distal tibia. There were no head, abdominal or spinal injuries. The patient was taken into emergency operation theatre after initial management which consisted of intravenous fluids, blood transfusion, and splintage of both lower limbs. Fracture of the femoral shaft was treated by closed reduction and fixation using two titanium elastic nails. Distal femoral physeal injury required open reduction and fixation with K wires. Distal tibia fractures were closely reduced and managed nonoperatively in both the lower limbs. All the fractures united in four weeks. At the last follow-up, the child had no disability and was able to perform daily activities comfortably. We also proposed the unique mechanism of injury in this report.